diff --git a/.pnp.cjs b/.pnp.cjs
index faa7910ef..22cb1cb30 100755
--- a/.pnp.cjs
+++ b/.pnp.cjs
@@ -32,6 +32,10 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
         "name": "@standardnotes/auth-server",\
         "reference": "workspace:packages/auth"\
       },\
+      {\
+        "name": "@standardnotes/common",\
+        "reference": "workspace:packages/common"\
+      },\
       {\
         "name": "@standardnotes/domain-events",\
         "reference": "workspace:packages/domain-events"\
@@ -71,6 +75,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
       ["@standardnotes/analytics", ["workspace:packages/analytics"]],\
       ["@standardnotes/api-gateway", ["workspace:packages/api-gateway"]],\
       ["@standardnotes/auth-server", ["workspace:packages/auth"]],\
+      ["@standardnotes/common", ["workspace:packages/common"]],\
       ["@standardnotes/domain-events", ["workspace:packages/domain-events"]],\
       ["@standardnotes/domain-events-infra", ["workspace:packages/domain-events-infra"]],\
       ["@standardnotes/files-server", ["workspace:packages/files"]],\
@@ -2667,7 +2672,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           "packageDependencies": [\
             ["@standardnotes/api", "npm:1.1.19"],\
             ["@standardnotes/auth", "npm:3.19.4"],\
-            ["@standardnotes/common", "npm:1.23.1"],\
+            ["@standardnotes/common", "workspace:packages/common"],\
             ["@standardnotes/encryption", "npm:1.12.0"],\
             ["@standardnotes/responses", "npm:1.6.39"],\
             ["@standardnotes/services", "npm:1.15.0"],\
@@ -2725,7 +2730,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           "packageLocation": "./.yarn/cache/@standardnotes-auth-npm-3.19.4-29b35c1352-84ac9e669e.zip/node_modules/@standardnotes/auth/",\
           "packageDependencies": [\
             ["@standardnotes/auth", "npm:3.19.4"],\
-            ["@standardnotes/common", "npm:1.23.1"],\
+            ["@standardnotes/common", "workspace:packages/common"],\
             ["jsonwebtoken", "npm:8.5.1"]\
           ],\
           "linkType": "HARD"\
@@ -2740,7 +2745,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
             ["@sentry/node", "npm:7.5.0"],\
             ["@standardnotes/analytics", "workspace:packages/analytics"],\
             ["@standardnotes/api", "npm:1.1.19"],\
-            ["@standardnotes/common", "npm:1.23.1"],\
+            ["@standardnotes/common", "workspace:packages/common"],\
             ["@standardnotes/domain-events", "workspace:packages/domain-events"],\
             ["@standardnotes/domain-events-infra", "workspace:packages/domain-events-infra"],\
             ["@standardnotes/features", "npm:1.50.0"],\
@@ -2793,12 +2798,19 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
         }]\
       ]],\
       ["@standardnotes/common", [\
-        ["npm:1.23.1", {\
-          "packageLocation": "./.yarn/cache/@standardnotes-common-npm-1.23.1-ed73dbb679-f498f4c469.zip/node_modules/@standardnotes/common/",\
+        ["workspace:packages/common", {\
+          "packageLocation": "./packages/common/",\
           "packageDependencies": [\
-            ["@standardnotes/common", "npm:1.23.1"]\
+            ["@standardnotes/common", "workspace:packages/common"],\
+            ["@types/jest", "npm:27.5.2"],\
+            ["@types/node", "npm:18.0.3"],\
+            ["@typescript-eslint/eslint-plugin", "virtual:c66bf20e88479ada0172094776519a9f51acc4731d22079b60a295bcec7ea42d5545cbce58a77a50d932bf953298799135e99707486e343da6d99ba1d167bdbd#npm:5.30.5"],\
+            ["eslint-plugin-prettier", "virtual:c66bf20e88479ada0172094776519a9f51acc4731d22079b60a295bcec7ea42d5545cbce58a77a50d932bf953298799135e99707486e343da6d99ba1d167bdbd#npm:4.2.1"],\
+            ["jest", "virtual:c66bf20e88479ada0172094776519a9f51acc4731d22079b60a295bcec7ea42d5545cbce58a77a50d932bf953298799135e99707486e343da6d99ba1d167bdbd#npm:27.5.1"],\
+            ["reflect-metadata", "npm:0.1.13"],\
+            ["ts-jest", "virtual:c66bf20e88479ada0172094776519a9f51acc4731d22079b60a295bcec7ea42d5545cbce58a77a50d932bf953298799135e99707486e343da6d99ba1d167bdbd#npm:27.1.5"]\
           ],\
-          "linkType": "HARD"\
+          "linkType": "SOFT"\
         }]\
       ]],\
       ["@standardnotes/config", [\
@@ -2820,7 +2832,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           "packageLocation": "./packages/domain-events/",\
           "packageDependencies": [\
             ["@standardnotes/domain-events", "workspace:packages/domain-events"],\
-            ["@standardnotes/common", "npm:1.23.1"],\
+            ["@standardnotes/common", "workspace:packages/common"],\
             ["@standardnotes/features", "npm:1.50.0"],\
             ["@standardnotes/predicates", "workspace:packages/predicates"],\
             ["@standardnotes/security", "workspace:packages/security"],\
@@ -2862,7 +2874,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           "packageLocation": "./.yarn/cache/@standardnotes-encryption-npm-1.12.0-eb2342c675-1a28653b1e.zip/node_modules/@standardnotes/encryption/",\
           "packageDependencies": [\
             ["@standardnotes/encryption", "npm:1.12.0"],\
-            ["@standardnotes/common", "npm:1.23.1"],\
+            ["@standardnotes/common", "workspace:packages/common"],\
             ["@standardnotes/models", "npm:1.14.0"],\
             ["@standardnotes/responses", "npm:1.6.39"],\
             ["@standardnotes/services", "npm:1.15.0"],\
@@ -2879,7 +2891,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           "packageDependencies": [\
             ["@standardnotes/features", "npm:1.50.0"],\
             ["@standardnotes/auth", "npm:3.19.4"],\
-            ["@standardnotes/common", "npm:1.23.1"],\
+            ["@standardnotes/common", "workspace:packages/common"],\
             ["reflect-metadata", "npm:0.1.13"]\
           ],\
           "linkType": "HARD"\
@@ -2891,7 +2903,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           "packageDependencies": [\
             ["@standardnotes/files-server", "workspace:packages/files"],\
             ["@sentry/node", "npm:7.5.0"],\
-            ["@standardnotes/common", "npm:1.23.1"],\
+            ["@standardnotes/common", "workspace:packages/common"],\
             ["@standardnotes/config", "npm:2.4.3"],\
             ["@standardnotes/domain-events", "workspace:packages/domain-events"],\
             ["@standardnotes/domain-events-infra", "workspace:packages/domain-events-infra"],\
@@ -2942,7 +2954,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           "packageLocation": "./.yarn/cache/@standardnotes-models-npm-1.14.0-6f064d99e7-bfb9d517b6.zip/node_modules/@standardnotes/models/",\
           "packageDependencies": [\
             ["@standardnotes/models", "npm:1.14.0"],\
-            ["@standardnotes/common", "npm:1.23.1"],\
+            ["@standardnotes/common", "workspace:packages/common"],\
             ["@standardnotes/features", "npm:1.50.0"],\
             ["@standardnotes/responses", "npm:1.6.39"],\
             ["@standardnotes/utils", "npm:1.6.12"],\
@@ -2957,7 +2969,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           "packageLocation": "./.yarn/cache/@standardnotes-payloads-npm-1.5.1-45dffe2f5c-65c28421e7.zip/node_modules/@standardnotes/payloads/",\
           "packageDependencies": [\
             ["@standardnotes/payloads", "npm:1.5.1"],\
-            ["@standardnotes/common", "npm:1.23.1"],\
+            ["@standardnotes/common", "workspace:packages/common"],\
             ["@standardnotes/features", "npm:1.50.0"],\
             ["@standardnotes/utils", "npm:1.6.12"]\
           ],\
@@ -2969,7 +2981,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           "packageLocation": "./packages/predicates/",\
           "packageDependencies": [\
             ["@standardnotes/predicates", "workspace:packages/predicates"],\
-            ["@standardnotes/common", "npm:1.23.1"],\
+            ["@standardnotes/common", "workspace:packages/common"],\
             ["@types/jest", "npm:27.5.2"],\
             ["@typescript-eslint/eslint-plugin", "virtual:c66bf20e88479ada0172094776519a9f51acc4731d22079b60a295bcec7ea42d5545cbce58a77a50d932bf953298799135e99707486e343da6d99ba1d167bdbd#npm:5.30.5"],\
             ["eslint-plugin-prettier", "virtual:c66bf20e88479ada0172094776519a9f51acc4731d22079b60a295bcec7ea42d5545cbce58a77a50d932bf953298799135e99707486e343da6d99ba1d167bdbd#npm:4.2.1"],\
@@ -2986,7 +2998,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           "packageDependencies": [\
             ["@standardnotes/responses", "npm:1.6.39"],\
             ["@standardnotes/auth", "npm:3.19.4"],\
-            ["@standardnotes/common", "npm:1.23.1"],\
+            ["@standardnotes/common", "workspace:packages/common"],\
             ["@standardnotes/features", "npm:1.50.0"]\
           ],\
           "linkType": "HARD"\
@@ -2999,7 +3011,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
             ["@standardnotes/scheduler-server", "workspace:packages/scheduler"],\
             ["@newrelic/winston-enricher", "virtual:04783e12400851b8a3d76e71495851cc94959db6e62f04cb0a31190080629440b182d8c8eb4d7f2b04e281912f2783a5fd4d2c3c6ab68d38b7097246c93f4c19#npm:2.1.2"],\
             ["@sentry/node", "npm:7.5.0"],\
-            ["@standardnotes/common", "npm:1.23.1"],\
+            ["@standardnotes/common", "workspace:packages/common"],\
             ["@standardnotes/domain-events", "workspace:packages/domain-events"],\
             ["@standardnotes/domain-events-infra", "workspace:packages/domain-events-infra"],\
             ["@standardnotes/predicates", "workspace:packages/predicates"],\
@@ -3032,7 +3044,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           "packageLocation": "./packages/security/",\
           "packageDependencies": [\
             ["@standardnotes/security", "workspace:packages/security"],\
-            ["@standardnotes/common", "npm:1.23.1"],\
+            ["@standardnotes/common", "workspace:packages/common"],\
             ["@types/jest", "npm:27.5.2"],\
             ["@types/jsonwebtoken", "npm:8.5.8"],\
             ["@typescript-eslint/eslint-plugin", "virtual:c66bf20e88479ada0172094776519a9f51acc4731d22079b60a295bcec7ea42d5545cbce58a77a50d932bf953298799135e99707486e343da6d99ba1d167bdbd#npm:5.30.5"],\
@@ -3078,7 +3090,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           "packageDependencies": [\
             ["@standardnotes/services", "npm:1.15.0"],\
             ["@standardnotes/auth", "npm:3.19.4"],\
-            ["@standardnotes/common", "npm:1.23.1"],\
+            ["@standardnotes/common", "workspace:packages/common"],\
             ["@standardnotes/models", "npm:1.14.0"],\
             ["@standardnotes/responses", "npm:1.6.39"],\
             ["@standardnotes/utils", "npm:1.6.12"],\
@@ -3123,7 +3135,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
             ["@newrelic/winston-enricher", "virtual:04783e12400851b8a3d76e71495851cc94959db6e62f04cb0a31190080629440b182d8c8eb4d7f2b04e281912f2783a5fd4d2c3c6ab68d38b7097246c93f4c19#npm:2.1.2"],\
             ["@sentry/node", "npm:7.5.0"],\
             ["@standardnotes/analytics", "workspace:packages/analytics"],\
-            ["@standardnotes/common", "npm:1.23.1"],\
+            ["@standardnotes/common", "workspace:packages/common"],\
             ["@standardnotes/domain-events", "workspace:packages/domain-events"],\
             ["@standardnotes/domain-events-infra", "workspace:packages/domain-events-infra"],\
             ["@standardnotes/payloads", "npm:1.5.1"],\
@@ -3194,7 +3206,7 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
           "packageLocation": "./.yarn/cache/@standardnotes-utils-npm-1.6.12-8fa8d7d09b-e177b1fa51.zip/node_modules/@standardnotes/utils/",\
           "packageDependencies": [\
             ["@standardnotes/utils", "npm:1.6.12"],\
-            ["@standardnotes/common", "npm:1.23.1"],\
+            ["@standardnotes/common", "workspace:packages/common"],\
             ["dompurify", "npm:2.3.8"],\
             ["lodash", "npm:4.17.21"]\
           ],\
diff --git a/.yarn/cache/@standardnotes-common-npm-1.23.1-ed73dbb679-f498f4c469.zip b/.yarn/cache/@standardnotes-common-npm-1.23.1-ed73dbb679-f498f4c469.zip
deleted file mode 100644
index 507ef2442..000000000
Binary files a/.yarn/cache/@standardnotes-common-npm-1.23.1-ed73dbb679-f498f4c469.zip and /dev/null differ
diff --git a/packages/auth/package.json b/packages/auth/package.json
index 9388a2238..9c7de6346 100644
--- a/packages/auth/package.json
+++ b/packages/auth/package.json
@@ -35,7 +35,7 @@
     "@sentry/node": "^7.3.0",
     "@standardnotes/analytics": "workspace:*",
     "@standardnotes/api": "^1.1.19",
-    "@standardnotes/common": "^1.23.1",
+    "@standardnotes/common": "workspace:*",
     "@standardnotes/domain-events": "workspace:*",
     "@standardnotes/domain-events-infra": "workspace:*",
     "@standardnotes/features": "^1.47.0",
diff --git a/packages/common/.eslintignore b/packages/common/.eslintignore
new file mode 100644
index 000000000..1521c8b76
--- /dev/null
+++ b/packages/common/.eslintignore
@@ -0,0 +1 @@
+dist
diff --git a/packages/common/.eslintrc b/packages/common/.eslintrc
new file mode 100644
index 000000000..cb7136174
--- /dev/null
+++ b/packages/common/.eslintrc
@@ -0,0 +1,6 @@
+{
+  "extends": "../../.eslintrc",
+  "parserOptions": {
+    "project": "./linter.tsconfig.json"
+  }
+}
diff --git a/packages/common/CHANGELOG.md b/packages/common/CHANGELOG.md
new file mode 100644
index 000000000..96006c25f
--- /dev/null
+++ b/packages/common/CHANGELOG.md
@@ -0,0 +1,258 @@
+# Change Log
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+## [1.23.2](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.23.1...@standardnotes/common@1.23.2) (2022-07-04)
+
+### Bug Fixes
+
+* add missing reflect-metadata package ([70aa494](https://github.com/standardnotes/snjs/commit/70aa4943a3fde70d4360055db22cb5388fc3f76e))
+
+## [1.23.1](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.23.0...@standardnotes/common@1.23.1) (2022-06-27)
+
+### Bug Fixes
+
+* add email message identifier for files email campaign ([affa300](https://github.com/standardnotes/snjs/commit/affa3005b6933165e262227282198310f0a65cb3))
+
+# [1.23.0](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.22.0...@standardnotes/common@1.23.0) (2022-06-15)
+
+### Features
+
+* add email requested events ([4d501fa](https://github.com/standardnotes/snjs/commit/4d501faedad44ff23782db1704956a6c19365fb6))
+
+# [1.22.0](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.21.0...@standardnotes/common@1.22.0) (2022-05-22)
+
+### Features
+
+* optional files navigation ([#745](https://github.com/standardnotes/snjs/issues/745)) ([8512166](https://github.com/standardnotes/snjs/commit/851216615478b57b11a570173f94ee598bec31c0))
+
+# [1.21.0](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.20.1...@standardnotes/common@1.21.0) (2022-05-17)
+
+### Features
+
+* remove basic user role and core subscription plan ([#741](https://github.com/standardnotes/snjs/issues/741)) ([7800ecd](https://github.com/standardnotes/snjs/commit/7800ecd119e7bbb5872d48bd7806b5d0f5522c0e))
+
+## [1.20.1](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.20.0...@standardnotes/common@1.20.1) (2022-05-16)
+
+**Note:** Version bump only for package @standardnotes/common
+
+# [1.20.0](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.19.8...@standardnotes/common@1.20.0) (2022-05-16)
+
+### Features
+
+* remove basic user role and core subscription plan names ([304e232](https://github.com/standardnotes/snjs/commit/304e232e738456a93374de869117b5579e8a8f57))
+
+## [1.19.8](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.19.6...@standardnotes/common@1.19.8) (2022-05-04)
+
+**Note:** Version bump only for package @standardnotes/common
+
+## [1.19.7](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.19.6...@standardnotes/common@1.19.7) (2022-05-04)
+
+**Note:** Version bump only for package @standardnotes/common
+
+## [1.19.6](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.19.5...@standardnotes/common@1.19.6) (2022-04-22)
+
+**Note:** Version bump only for package @standardnotes/common
+
+## [1.19.5](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.19.4...@standardnotes/common@1.19.5) (2022-04-21)
+
+### Bug Fixes
+
+* abort key recovery after aborted challenge ([#703](https://github.com/standardnotes/snjs/issues/703)) ([a67fb7e](https://github.com/standardnotes/snjs/commit/a67fb7e8cde41a5c9fadf545933e35d525faeaf0))
+
+## [1.19.4](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.19.3...@standardnotes/common@1.19.4) (2022-04-15)
+
+**Note:** Version bump only for package @standardnotes/common
+
+## [1.19.3](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.19.2...@standardnotes/common@1.19.3) (2022-04-11)
+
+**Note:** Version bump only for package @standardnotes/common
+
+## [1.19.2](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.19.1...@standardnotes/common@1.19.2) (2022-04-01)
+
+**Note:** Version bump only for package @standardnotes/common
+
+## [1.19.1](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.19.0...@standardnotes/common@1.19.1) (2022-03-31)
+
+**Note:** Version bump only for package @standardnotes/common
+
+# [1.19.0](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.18.0...@standardnotes/common@1.19.0) (2022-03-31)
+
+### Features
+
+* encryption and models packages ([#679](https://github.com/standardnotes/snjs/issues/679)) ([5e03d48](https://github.com/standardnotes/snjs/commit/5e03d48aba7e3dd266117201139ab869b1f70cc9))
+
+# [1.18.0](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.17.0...@standardnotes/common@1.18.0) (2022-03-30)
+
+### Features
+
+* files-beta role ([#678](https://github.com/standardnotes/snjs/issues/678)) ([f1ae62f](https://github.com/standardnotes/snjs/commit/f1ae62ff05e361dc551f1a0d047feabd129d0f76))
+
+# [1.17.0](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.16.2...@standardnotes/common@1.17.0) (2022-03-22)
+
+### Features
+
+* add read only access error tag ([c3c7b4c](https://github.com/standardnotes/snjs/commit/c3c7b4c12f9b23dfc8e4bf1d4af43f6307f64190))
+
+## [1.16.2](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.16.1...@standardnotes/common@1.16.2) (2022-03-21)
+
+**Note:** Version bump only for package @standardnotes/common
+
+## [1.16.1](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.16.0...@standardnotes/common@1.16.1) (2022-03-18)
+
+### Bug Fixes
+
+* add demo user role ([aa7ebc8](https://github.com/standardnotes/snjs/commit/aa7ebc84ef1160688d2767b86a32719ce68a257b))
+
+# [1.16.0](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.15.3...@standardnotes/common@1.16.0) (2022-03-16)
+
+### Features
+
+* delete file functionality ([#657](https://github.com/standardnotes/snjs/issues/657)) ([edec4f7](https://github.com/standardnotes/snjs/commit/edec4f7a65ef557ed5f47be4dddcf2b659ee28b4))
+
+## [1.15.4](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.15.3...@standardnotes/common@1.15.4) (2022-03-16)
+
+**Note:** Version bump only for package @standardnotes/common
+
+## [1.15.3](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.15.1...@standardnotes/common@1.15.3) (2022-02-28)
+
+### Bug Fixes
+
+* add pseudo change to get lerna to trigger ([41e6817](https://github.com/standardnotes/snjs/commit/41e6817bbf726b0932cdf16f58622328b9e42803))
+
+## [1.15.2](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.15.1...@standardnotes/common@1.15.2) (2022-02-28)
+
+### Bug Fixes
+
+* add pseudo change to get lerna to trigger ([41e6817](https://github.com/standardnotes/snjs/commit/41e6817bbf726b0932cdf16f58622328b9e42803))
+
+## [1.15.1](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.15.0...@standardnotes/common@1.15.1) (2022-02-27)
+
+**Note:** Version bump only for package @standardnotes/common
+
+# [1.15.0](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.14.1...@standardnotes/common@1.15.0) (2022-02-25)
+
+### Features
+
+* extract core functionalities to separate packages ([#610](https://github.com/standardnotes/snjs/issues/610)) ([801547a](https://github.com/standardnotes/snjs/commit/801547a71614ad51a92fb249eaa184ed46a44aac))
+
+## [1.14.1](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.14.0...@standardnotes/common@1.14.1) (2022-02-24)
+
+**Note:** Version bump only for package @standardnotes/common
+
+# [1.14.0](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.13.0...@standardnotes/common@1.14.0) (2022-02-22)
+
+### Features
+
+* extract services package ([#605](https://github.com/standardnotes/snjs/issues/605)) ([3966b10](https://github.com/standardnotes/snjs/commit/3966b10745c10ef5bb92871abb13ceb4ea631362))
+
+# [1.13.0](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.12.0...@standardnotes/common@1.13.0) (2022-02-22)
+
+### Features
+
+* extract SNJS utils as a separate package ([#604](https://github.com/standardnotes/snjs/issues/604)) ([b28195c](https://github.com/standardnotes/snjs/commit/b28195c20be788eec8dabc44c5aff518f074cdd9))
+
+# [1.12.0](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.11.0...@standardnotes/common@1.12.0) (2022-02-18)
+
+### Features
+
+* add item integrity hash model ([975474a](https://github.com/standardnotes/snjs/commit/975474a04c4b11edea381235fe38273db59fa770))
+
+# [1.11.0](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.10.0...@standardnotes/common@1.11.0) (2022-02-16)
+
+### Features
+
+* add paid roles definition ([3432608](https://github.com/standardnotes/snjs/commit/34326086c16000397d994054e807dd3589b536db))
+
+# [1.10.0](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.9.0...@standardnotes/common@1.10.0) (2022-02-10)
+
+### Features
+
+* move role names and suscription names from auth to common package ([5358c03](https://github.com/standardnotes/snjs/commit/5358c03ef113597bcdcf7b0f3e730c8014885a0f))
+
+# [1.9.0](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.8.0...@standardnotes/common@1.9.0) (2022-02-07)
+
+### Features
+
+* dynamic features based on runtime env ([#590](https://github.com/standardnotes/snjs/issues/590)) ([060861a](https://github.com/standardnotes/snjs/commit/060861a6c5bc179e3e1987c2b63490888e153bbb))
+
+# [1.8.0](https://github.com/standardnotes/snjs/compare/@standardnotes/common@1.7.0...@standardnotes/common@1.8.0) (2022-01-15)
+
+### Bug Fixes
+
+* correct gitignore paths ([cefc0cf](https://github.com/standardnotes/snjs/commit/cefc0cfcf98e3e5378e055b8c46931b53b23195e))
+* include dist in static components ([d17ce0f](https://github.com/standardnotes/snjs/commit/d17ce0f67045c6e4c97bf4577709aa58794e72e6))
+
+### Features
+
+* remove server extension type ([#552](https://github.com/standardnotes/snjs/issues/552)) ([aa542f3](https://github.com/standardnotes/snjs/commit/aa542f3124c60fa81a0b271030b3c35415c54a62))
+
+# 1.7.0 (2021-12-23)
+
+### Features
+
+* rename email backup setting to email backup frequency ([25e7b46](https://github.com/standardnotes/snjs/commit/25e7b4620834711ac7f513ae893898c5eab1af53))
+
+## 1.6.3 (2021-12-23)
+
+### Bug Fixes
+
+* lock package versions ([8aa2ce6](https://github.com/standardnotes/snjs/commit/8aa2ce676b57598ab72840adf851869d8e769022))
+
+## 1.6.2 (2021-12-23)
+
+### Bug Fixes
+
+* add publishing from package version by lerna ([80433d0](https://github.com/standardnotes/snjs/commit/80433d044f258095753482b8322d73aba3d9a9e4))
+
+## 1.6.1 (2021-12-23)
+
+### Bug Fixes
+
+* remove the ammend commit from lerna versioning ([f0400d9](https://github.com/standardnotes/snjs/commit/f0400d9a2f5a04eaece2e4c16da71166a2ddb251))
+
+# 1.6.0 (2021-12-23)
+
+### Features
+
+* add one drive backup frequency setting ([#522](https://github.com/standardnotes/snjs/issues/522)) ([c27827f](https://github.com/standardnotes/snjs/commit/c27827f8c7969dd32511c9c75122ece372132c83))
+
+## 1.5.4 (2021-12-23)
+
+### Bug Fixes
+
+* remove running tests upon deployment - ensured on PR status checks ([#523](https://github.com/standardnotes/snjs/issues/523)) ([5c795d1](https://github.com/standardnotes/snjs/commit/5c795d17b583d02955773576384e622c3ef7f418))
+
+## 1.5.3 (2021-12-23)
+
+### Bug Fixes
+
+* pr template ([#518](https://github.com/standardnotes/snjs/issues/518)) ([b445bb6](https://github.com/standardnotes/snjs/commit/b445bb64841217ae27c2514887629235be95d2a3))
+
+## 1.5.2 (2021-12-23)
+
+### Bug Fixes
+
+* checkout with personal access token ([773c1ef](https://github.com/standardnotes/snjs/commit/773c1ef91c4452ad411e928342060dcb59428e3c))
+
+## 1.5.1 (2021-12-22)
+
+### Bug Fixes
+
+* gpg signing with CI StandardNotes user ([d72f61c](https://github.com/standardnotes/snjs/commit/d72f61c23cd15b31d37340cc756d16526634b9ee))
+
+# 1.5.0 (2021-12-22)
+
+### Bug Fixes
+
+* versioning and package dependencies ([#509](https://github.com/standardnotes/snjs/issues/509)) ([fe1df94](https://github.com/standardnotes/snjs/commit/fe1df94eff3e90bcf9ba0cf45bdc44ac49204c71))
+
+### Features
+
+* add content decoder to common package ([504cf10](https://github.com/standardnotes/snjs/commit/504cf10d83c9cba6e8ee79ce138847a293a2f9e0))
+* add ContentType to common package ([#401](https://github.com/standardnotes/snjs/issues/401)) ([1152c02](https://github.com/standardnotes/snjs/commit/1152c020e30e60996b4830b66e07ec4183bbac24))
+* add SN|Privileges to content types ([#444](https://github.com/standardnotes/snjs/issues/444)) ([0eee358](https://github.com/standardnotes/snjs/commit/0eee3581e5f9f41f227c824adc92a0e15b8fa4b4))
+* extract settings and common package ([#372](https://github.com/standardnotes/snjs/issues/372)) ([4f89688](https://github.com/standardnotes/snjs/commit/4f89688054cdae88c001287c9fb3431debd0136c))
+* remove legacy mfa ([#495](https://github.com/standardnotes/snjs/issues/495)) ([b0498f4](https://github.com/standardnotes/snjs/commit/b0498f4fad85367e1b57c6deacb5d313331bf8db))
+* upgrade node engine versions to latest active LTS ([#462](https://github.com/standardnotes/snjs/issues/462)) ([686fc15](https://github.com/standardnotes/snjs/commit/686fc15030d302b474ebb7ef1cd4dcc48ec42359))
diff --git a/packages/common/jest.config.js b/packages/common/jest.config.js
new file mode 100644
index 000000000..ac920d85b
--- /dev/null
+++ b/packages/common/jest.config.js
@@ -0,0 +1,19 @@
+// eslint-disable-next-line @typescript-eslint/no-var-requires
+const base = require('../../jest.config');
+
+module.exports = {
+  ...base,
+  globals: {
+    'ts-jest': {
+      tsconfig: 'tsconfig.json',
+    },
+  },
+  coverageThreshold: {
+    global: {
+      branches: 14,
+      functions: 13,
+      lines: 14,
+      statements: 14
+    }
+  }
+};
diff --git a/packages/common/linter.tsconfig.json b/packages/common/linter.tsconfig.json
new file mode 100644
index 000000000..c1a7d22c5
--- /dev/null
+++ b/packages/common/linter.tsconfig.json
@@ -0,0 +1,4 @@
+{
+  "extends": "./tsconfig.json",
+  "exclude": ["dist"]
+}
diff --git a/packages/common/package.json b/packages/common/package.json
new file mode 100644
index 000000000..68bbd0b9d
--- /dev/null
+++ b/packages/common/package.json
@@ -0,0 +1,39 @@
+{
+  "name": "@standardnotes/common",
+  "version": "1.24.0",
+  "engines": {
+    "node": ">=16.0.0 <17.0.0"
+  },
+  "description": "Common types and utilities for Standard Notes projects",
+  "main": "dist/src/index.js",
+  "author": "Standard Notes",
+  "types": "dist/src/index.d.ts",
+  "files": [
+    "dist/src/**/*.js",
+    "dist/src/**/*.d.ts"
+  ],
+  "publishConfig": {
+    "access": "public"
+  },
+  "license": "AGPL-3.0-or-later",
+  "scripts": {
+    "clean": "rm -fr dist",
+    "prestart": "yarn clean",
+    "start": "tsc -p tsconfig.json --watch",
+    "prebuild": "yarn clean",
+    "build": "tsc -p tsconfig.json",
+    "lint": "eslint . --ext .ts",
+    "test:unit": "jest spec --coverage"
+  },
+  "devDependencies": {
+    "@types/jest": "^27.4.1",
+    "@types/node": "^18.0.0",
+    "@typescript-eslint/eslint-plugin": "^5.30.0",
+    "eslint-plugin-prettier": "^4.2.1",
+    "jest": "^27.5.1",
+    "ts-jest": "^27.1.3"
+  },
+  "dependencies": {
+    "reflect-metadata": "^0.1.13"
+  }
+}
diff --git a/packages/common/src/Domain/Content/ContentDecoder.spec.ts b/packages/common/src/Domain/Content/ContentDecoder.spec.ts
new file mode 100644
index 000000000..cdf738256
--- /dev/null
+++ b/packages/common/src/Domain/Content/ContentDecoder.spec.ts
@@ -0,0 +1,37 @@
+import 'reflect-metadata'
+
+import { ContentDecoder } from './ContentDecoder'
+
+describe('ContentDecoder', () => {
+  const createDecoder = () => new ContentDecoder()
+
+  it('should decode content', () => {
+    const content = '000eyJmb28iOiJiYXIifQ=='
+
+    expect(createDecoder().decode(content)).toEqual({
+      foo: 'bar',
+    })
+  })
+
+  it('should decode content without padding', () => {
+    const content = 'eyJmb28iOiJiYXIifQ=='
+
+    expect(createDecoder().decode(content, 0)).toEqual({
+      foo: 'bar',
+    })
+  })
+
+  it('should encode content', () => {
+    expect(
+      createDecoder().encode({
+        foo: 'bar',
+      }),
+    ).toEqual('000eyJmb28iOiJiYXIifQ==')
+  })
+
+  it('should return empty object on decoding failure', () => {
+    const content = '032400eyJmb28iOiJiYXIifQ=='
+
+    expect(createDecoder().decode(content)).toEqual({})
+  })
+})
diff --git a/packages/common/src/Domain/Content/ContentDecoder.ts b/packages/common/src/Domain/Content/ContentDecoder.ts
new file mode 100644
index 000000000..ef0488a91
--- /dev/null
+++ b/packages/common/src/Domain/Content/ContentDecoder.ts
@@ -0,0 +1,23 @@
+import { ContentDecoderInterface } from './ContentDecoderInterface'
+
+export class ContentDecoder implements ContentDecoderInterface {
+  decode(content: string, leftPaddingLength = 3): Record<string, unknown> {
+    try {
+      const contentToDecode = leftPaddingLength > 0 ? content.substring(leftPaddingLength) : content
+      const contentBuffer = Buffer.from(contentToDecode, 'base64')
+      const decodedContent = contentBuffer.toString()
+
+      return JSON.parse(decodedContent)
+    } catch (error) {
+      return {}
+    }
+  }
+
+  encode(content: Record<string, unknown>, leftPaddingLength = 3): string | undefined {
+    const stringifiedContent = JSON.stringify(content)
+
+    const encodedContent = Buffer.from(stringifiedContent).toString('base64')
+
+    return encodedContent.padStart(encodedContent.length + leftPaddingLength, '0')
+  }
+}
diff --git a/packages/common/src/Domain/Content/ContentDecoderInterface.ts b/packages/common/src/Domain/Content/ContentDecoderInterface.ts
new file mode 100644
index 000000000..61cdb3068
--- /dev/null
+++ b/packages/common/src/Domain/Content/ContentDecoderInterface.ts
@@ -0,0 +1,4 @@
+export interface ContentDecoderInterface {
+  decode(content: string, leftPaddingLength?: number): Record<string, unknown>
+  encode(content: Record<string, unknown>, leftPaddingLength?: number): string | undefined
+}
diff --git a/packages/common/src/Domain/Content/ContentType.ts b/packages/common/src/Domain/Content/ContentType.ts
new file mode 100644
index 000000000..36d7a5a3d
--- /dev/null
+++ b/packages/common/src/Domain/Content/ContentType.ts
@@ -0,0 +1,44 @@
+/* istanbul ignore file */
+export enum ContentType {
+  Any = '*',
+  Item = 'SF|Item',
+  RootKey = 'SN|RootKey|NoSync',
+  ItemsKey = 'SN|ItemsKey',
+  EncryptedStorage = 'SN|EncryptedStorage',
+  Privileges = 'SN|Privileges',
+  Note = 'Note',
+  Tag = 'Tag',
+  SmartView = 'SN|SmartTag',
+  Component = 'SN|Component',
+  Editor = 'SN|Editor',
+  ActionsExtension = 'Extension',
+  UserPrefs = 'SN|UserPreferences',
+  HistorySession = 'SN|HistorySession',
+  Theme = 'SN|Theme',
+  File = 'SN|File',
+  FilesafeCredentials = 'SN|FileSafe|Credentials',
+  FilesafeFileMetadata = 'SN|FileSafe|FileMetadata',
+  FilesafeIntegration = 'SN|FileSafe|Integration',
+  ExtensionRepo = 'SN|ExtensionRepo',
+  Unknown = 'Unknown',
+}
+
+export function DisplayStringForContentType(contentType: ContentType): string | undefined {
+  const map: Partial<Record<ContentType, string>> = {
+    [ContentType.ActionsExtension]: 'action-based extension',
+    [ContentType.Component]: 'component',
+    [ContentType.Editor]: 'editor',
+    [ContentType.File]: 'file',
+    [ContentType.FilesafeCredentials]: 'FileSafe credential',
+    [ContentType.FilesafeFileMetadata]: 'FileSafe file',
+    [ContentType.FilesafeIntegration]: 'FileSafe integration',
+    [ContentType.ItemsKey]: 'encryption key',
+    [ContentType.Note]: 'note',
+    [ContentType.SmartView]: 'smart view',
+    [ContentType.Tag]: 'tag',
+    [ContentType.Theme]: 'theme',
+    [ContentType.UserPrefs]: 'user preferences',
+  }
+
+  return map[contentType]
+}
diff --git a/packages/common/src/Domain/DataType/AnyRecord.ts b/packages/common/src/Domain/DataType/AnyRecord.ts
new file mode 100644
index 000000000..6a33aff0f
--- /dev/null
+++ b/packages/common/src/Domain/DataType/AnyRecord.ts
@@ -0,0 +1,2 @@
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+export type AnyRecord = Partial<Record<string, any>>
diff --git a/packages/common/src/Domain/DataType/ApplicationIdentifier.ts b/packages/common/src/Domain/DataType/ApplicationIdentifier.ts
new file mode 100644
index 000000000..20c51e9e3
--- /dev/null
+++ b/packages/common/src/Domain/DataType/ApplicationIdentifier.ts
@@ -0,0 +1 @@
+export type ApplicationIdentifier = string
diff --git a/packages/common/src/Domain/DataType/MicrosecondsTimestamp.ts b/packages/common/src/Domain/DataType/MicrosecondsTimestamp.ts
new file mode 100644
index 000000000..8723eab62
--- /dev/null
+++ b/packages/common/src/Domain/DataType/MicrosecondsTimestamp.ts
@@ -0,0 +1 @@
+export type MicrosecondsTimestamp = number
diff --git a/packages/common/src/Domain/DataType/Uuid.ts b/packages/common/src/Domain/DataType/Uuid.ts
new file mode 100644
index 000000000..3bf240f9d
--- /dev/null
+++ b/packages/common/src/Domain/DataType/Uuid.ts
@@ -0,0 +1 @@
+export type Uuid = string
diff --git a/packages/common/src/Domain/Email/EmailMessageIdentifier.ts b/packages/common/src/Domain/Email/EmailMessageIdentifier.ts
new file mode 100644
index 000000000..d2e0cab9e
--- /dev/null
+++ b/packages/common/src/Domain/Email/EmailMessageIdentifier.ts
@@ -0,0 +1,18 @@
+export enum EmailMessageIdentifier {
+  WELCOME_EMAIL = 'WELCOME_EMAIL',
+  ACCOUNT_CLAIM = 'ACCOUNT_CLAIM',
+  ACTIVATION_CODE = 'ACTIVATION_CODE',
+  VERSION_ADOPTION_REPORT = 'VERSION_ADOPTION_REPORT',
+  FAILED_DROPBOX_BACKUP = 'FAILED_DROPBOX_BACKUP',
+  FAILED_GOOGLE_DRIVE_BACKUP = 'FAILED_GOOGLE_DRIVE_BACKUP',
+  FAILED_ONE_DRIVE_BACKUP = 'FAILED_ONE_DRIVE_BACKUP',
+  DATA_BACKUP = 'DATA_BACKUP',
+  FAILED_BACKUP_ATTACHMENT_TOO_BIG = 'FAILED_BACKUP_ATTACHMENT_TOO_BIG',
+  OFFLINE_SUBSCRIPTION_ACCESS = 'OFFLINE_SUBSCRIPTION_ACCESS',
+  SIGN_IN = 'SIGN_IN',
+  SHARED_SUBSCRIPTION_INVITATION = 'SHARED_SUBSCRIPTION_INVITATION',
+  ENCOURAGE_EMAIL_BACKUPS = 'ENCOURAGE_EMAIL_BACKUPS',
+  ENCOURAGE_SUBSCRIPTION_PURCHASING = 'ENCOURAGE_SUBSCRIPTION_PURCHASING',
+  EXIT_INTERVIEW = 'EXIT_INTERVIEW',
+  MARKETING_CAMPAIGN_FILES = 'MARKETING_CAMPAIGN_FILES',
+}
diff --git a/packages/common/src/Domain/Error/ErrorTag.ts b/packages/common/src/Domain/Error/ErrorTag.ts
new file mode 100644
index 000000000..f912e4c0c
--- /dev/null
+++ b/packages/common/src/Domain/Error/ErrorTag.ts
@@ -0,0 +1,12 @@
+/* istanbul ignore file */
+export enum ErrorTag {
+  MfaInvalid = 'mfa-invalid',
+  MfaRequired = 'mfa-required',
+  RefreshTokenInvalid = 'invalid-refresh-token',
+  RefreshTokenExpired = 'expired-refresh-token',
+  AccessTokenExpired = 'expired-access-token',
+  ParametersInvalid = 'invalid-parameters',
+  RevokedSession = 'revoked-session',
+  AuthInvalid = 'invalid-auth',
+  ReadOnlyAccess = 'read-only-access',
+}
diff --git a/packages/common/src/Domain/KeyParams/AnyKeyParamsContent.ts b/packages/common/src/Domain/KeyParams/AnyKeyParamsContent.ts
new file mode 100644
index 000000000..bf955eabd
--- /dev/null
+++ b/packages/common/src/Domain/KeyParams/AnyKeyParamsContent.ts
@@ -0,0 +1,6 @@
+import { KeyParamsContent001 } from './KeyParamsContent001'
+import { KeyParamsContent002 } from './KeyParamsContent002'
+import { KeyParamsContent003 } from './KeyParamsContent003'
+import { KeyParamsContent004 } from './KeyParamsContent004'
+
+export type AnyKeyParamsContent = KeyParamsContent001 | KeyParamsContent002 | KeyParamsContent003 | KeyParamsContent004
diff --git a/packages/common/src/Domain/KeyParams/BaseKeyParams.ts b/packages/common/src/Domain/KeyParams/BaseKeyParams.ts
new file mode 100644
index 000000000..ac52936ce
--- /dev/null
+++ b/packages/common/src/Domain/KeyParams/BaseKeyParams.ts
@@ -0,0 +1,10 @@
+import { ProtocolVersion } from '../Protocol/ProtocolVersion'
+import { KeyParamsOrigination } from './KeyParamsOrigination'
+
+export type BaseKeyParams = {
+  /** Seconds since creation date */
+  created?: string
+  /** The event that lead to the creation of these params */
+  origination?: KeyParamsOrigination
+  version: ProtocolVersion
+}
diff --git a/packages/common/src/Domain/KeyParams/KeyParamsContent001.ts b/packages/common/src/Domain/KeyParams/KeyParamsContent001.ts
new file mode 100644
index 000000000..f348a5b2e
--- /dev/null
+++ b/packages/common/src/Domain/KeyParams/KeyParamsContent001.ts
@@ -0,0 +1,8 @@
+import { BaseKeyParams } from './BaseKeyParams'
+
+export type KeyParamsContent001 = BaseKeyParams & {
+  email: string
+  pw_cost: number
+  pw_salt: string
+  pw_nonce: string
+}
diff --git a/packages/common/src/Domain/KeyParams/KeyParamsContent002.ts b/packages/common/src/Domain/KeyParams/KeyParamsContent002.ts
new file mode 100644
index 000000000..accc57aaa
--- /dev/null
+++ b/packages/common/src/Domain/KeyParams/KeyParamsContent002.ts
@@ -0,0 +1,8 @@
+import { BaseKeyParams } from './BaseKeyParams'
+
+export type KeyParamsContent002 = BaseKeyParams & {
+  email: string
+  pw_cost: number
+  pw_salt: string
+  pw_nonce: string
+}
diff --git a/packages/common/src/Domain/KeyParams/KeyParamsContent003.ts b/packages/common/src/Domain/KeyParams/KeyParamsContent003.ts
new file mode 100644
index 000000000..2dc2491e4
--- /dev/null
+++ b/packages/common/src/Domain/KeyParams/KeyParamsContent003.ts
@@ -0,0 +1,6 @@
+import { BaseKeyParams } from './BaseKeyParams'
+
+export type KeyParamsContent003 = BaseKeyParams & {
+  identifier: string
+  pw_nonce: string
+}
diff --git a/packages/common/src/Domain/KeyParams/KeyParamsContent004.ts b/packages/common/src/Domain/KeyParams/KeyParamsContent004.ts
new file mode 100644
index 000000000..347300228
--- /dev/null
+++ b/packages/common/src/Domain/KeyParams/KeyParamsContent004.ts
@@ -0,0 +1,6 @@
+import { BaseKeyParams } from './BaseKeyParams'
+
+export type KeyParamsContent004 = Required<BaseKeyParams> & {
+  identifier: string
+  pw_nonce: string
+}
diff --git a/packages/common/src/Domain/KeyParams/KeyParamsOrigination.ts b/packages/common/src/Domain/KeyParams/KeyParamsOrigination.ts
new file mode 100644
index 000000000..2700f204c
--- /dev/null
+++ b/packages/common/src/Domain/KeyParams/KeyParamsOrigination.ts
@@ -0,0 +1,8 @@
+export enum KeyParamsOrigination {
+  Registration = 'registration',
+  EmailChange = 'email-change',
+  PasswordChange = 'password-change',
+  ProtocolUpgrade = 'protocol-upgrade',
+  PasscodeCreate = 'passcode-create',
+  PasscodeChange = 'passcode-change',
+}
diff --git a/packages/common/src/Domain/Protocol/ProtocolVersion.ts b/packages/common/src/Domain/Protocol/ProtocolVersion.ts
new file mode 100644
index 000000000..9b3f7068c
--- /dev/null
+++ b/packages/common/src/Domain/Protocol/ProtocolVersion.ts
@@ -0,0 +1,56 @@
+export enum ProtocolVersion {
+  V001 = '001',
+  V002 = '002',
+  V003 = '003',
+  V004 = '004',
+}
+
+export const ProtocolVersionLatest = ProtocolVersion.V004
+
+/** The last protocol version to not use root-key based items keys */
+export const ProtocolVersionLastNonrootItemsKey = ProtocolVersion.V003
+
+export const ProtocolExpirationDates: Partial<Record<ProtocolVersion, number>> = Object.freeze({
+  [ProtocolVersion.V001]: Date.parse('2018-01-01'),
+  [ProtocolVersion.V002]: Date.parse('2020-01-01'),
+})
+
+export function isProtocolVersionExpired(version: ProtocolVersion) {
+  const expireDate = ProtocolExpirationDates[version]
+  if (!expireDate) {
+    return false
+  }
+
+  const expired = new Date().getTime() > expireDate
+  return expired
+}
+
+export const ProtocolVersionLength = 3
+
+export function protocolVersionFromEncryptedString(string: string): ProtocolVersion {
+  const version = string.substring(0, ProtocolVersionLength) as ProtocolVersion
+  if (Object.values(ProtocolVersion).includes(version)) {
+    return version
+  }
+
+  throw Error(`Unrecognized protocol version ${version}`)
+}
+
+/**
+ *  -1 if a < b
+ *  0 if a == b
+ *  1 if a > b
+ */
+export function compareVersions(a: ProtocolVersion, b: ProtocolVersion): number {
+  const aNum = Number(a)
+  const bNum = Number(b)
+  return aNum - bNum
+}
+
+export function leftVersionGreaterThanOrEqualToRight(a: ProtocolVersion, b: ProtocolVersion): boolean {
+  return compareVersions(a, b) >= 0
+}
+
+export function isVersionLessThanOrEqualTo(input: ProtocolVersion, compareTo: ProtocolVersion): boolean {
+  return compareVersions(input, compareTo) <= 0
+}
diff --git a/packages/common/src/Domain/Role/PaidRoles.ts b/packages/common/src/Domain/Role/PaidRoles.ts
new file mode 100644
index 000000000..64e5da94d
--- /dev/null
+++ b/packages/common/src/Domain/Role/PaidRoles.ts
@@ -0,0 +1,4 @@
+/* istanbul ignore file */
+import { RoleName } from './RoleName'
+
+export const PaidRoles = [RoleName.CoreUser, RoleName.PlusUser, RoleName.ProUser]
diff --git a/packages/common/src/Domain/Role/RoleName.ts b/packages/common/src/Domain/Role/RoleName.ts
new file mode 100644
index 000000000..c2f98c1d4
--- /dev/null
+++ b/packages/common/src/Domain/Role/RoleName.ts
@@ -0,0 +1,7 @@
+/* istanbul ignore file */
+export enum RoleName {
+  CoreUser = 'CORE_USER',
+  PlusUser = 'PLUS_USER',
+  ProUser = 'PRO_USER',
+  FilesBetaUser = 'FILES_BETA_USER',
+}
diff --git a/packages/common/src/Domain/Subscription/SubscriptionName.ts b/packages/common/src/Domain/Subscription/SubscriptionName.ts
new file mode 100644
index 000000000..4015de964
--- /dev/null
+++ b/packages/common/src/Domain/Subscription/SubscriptionName.ts
@@ -0,0 +1,5 @@
+/* istanbul ignore file */
+export enum SubscriptionName {
+  PlusPlan = 'PLUS_PLAN',
+  ProPlan = 'PRO_PLAN',
+}
diff --git a/packages/common/src/Domain/index.ts b/packages/common/src/Domain/index.ts
new file mode 100644
index 000000000..05af127a3
--- /dev/null
+++ b/packages/common/src/Domain/index.ts
@@ -0,0 +1,20 @@
+export * from './Content/ContentType'
+export * from './Content/ContentDecoder'
+export * from './Content/ContentDecoderInterface'
+export * from './DataType/AnyRecord'
+export * from './DataType/MicrosecondsTimestamp'
+export * from './DataType/Uuid'
+export * from './DataType/ApplicationIdentifier'
+export * from './Email/EmailMessageIdentifier'
+export * from './Error/ErrorTag'
+export * from './KeyParams/AnyKeyParamsContent'
+export * from './KeyParams/BaseKeyParams'
+export * from './KeyParams/KeyParamsContent001'
+export * from './KeyParams/KeyParamsContent002'
+export * from './KeyParams/KeyParamsContent003'
+export * from './KeyParams/KeyParamsContent004'
+export * from './KeyParams/KeyParamsOrigination'
+export * from './Protocol/ProtocolVersion'
+export * from './Role/PaidRoles'
+export * from './Role/RoleName'
+export * from './Subscription/SubscriptionName'
diff --git a/packages/common/src/index.ts b/packages/common/src/index.ts
new file mode 100644
index 000000000..920deacdb
--- /dev/null
+++ b/packages/common/src/index.ts
@@ -0,0 +1 @@
+export * from './Domain'
diff --git a/packages/common/tsconfig.json b/packages/common/tsconfig.json
new file mode 100644
index 000000000..8d2588d39
--- /dev/null
+++ b/packages/common/tsconfig.json
@@ -0,0 +1,11 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "composite": true,
+    "outDir": "./dist",
+  },
+  "include": [
+    "src/**/*"
+  ],
+  "references": []
+}
diff --git a/packages/domain-events/package.json b/packages/domain-events/package.json
index e417fd246..76dd8349c 100644
--- a/packages/domain-events/package.json
+++ b/packages/domain-events/package.json
@@ -24,7 +24,7 @@
     "test:unit": "jest spec --coverage --passWithNoTests"
   },
   "dependencies": {
-    "@standardnotes/common": "^1.23.1",
+    "@standardnotes/common": "workspace:*",
     "@standardnotes/features": "^1.47.0",
     "@standardnotes/predicates": "workspace:*",
     "@standardnotes/security": "workspace:*",
diff --git a/packages/files/package.json b/packages/files/package.json
index 371cdabe4..f671b53b4 100644
--- a/packages/files/package.json
+++ b/packages/files/package.json
@@ -27,7 +27,7 @@
   },
   "dependencies": {
     "@sentry/node": "^7.3.0",
-    "@standardnotes/common": "^1.23.1",
+    "@standardnotes/common": "workspace:*",
     "@standardnotes/domain-events": "workspace:*",
     "@standardnotes/domain-events-infra": "workspace:*",
     "@standardnotes/security": "workspace:*",
diff --git a/packages/predicates/package.json b/packages/predicates/package.json
index f98230268..b9e88ff5f 100644
--- a/packages/predicates/package.json
+++ b/packages/predicates/package.json
@@ -33,7 +33,7 @@
     "ts-jest": "^27.1.3"
   },
   "dependencies": {
-    "@standardnotes/common": "^1.23.1",
+    "@standardnotes/common": "workspace:*",
     "reflect-metadata": "^0.1.13"
   }
 }
diff --git a/packages/scheduler/package.json b/packages/scheduler/package.json
index f71db3110..395d757fa 100644
--- a/packages/scheduler/package.json
+++ b/packages/scheduler/package.json
@@ -26,7 +26,7 @@
   "dependencies": {
     "@newrelic/winston-enricher": "^2.1.0",
     "@sentry/node": "^7.3.0",
-    "@standardnotes/common": "^1.23.1",
+    "@standardnotes/common": "workspace:*",
     "@standardnotes/domain-events": "workspace:*",
     "@standardnotes/domain-events-infra": "workspace:*",
     "@standardnotes/predicates": "workspace:*",
diff --git a/packages/security/package.json b/packages/security/package.json
index dc43dbfe9..b6b291db8 100644
--- a/packages/security/package.json
+++ b/packages/security/package.json
@@ -26,7 +26,7 @@
     "test:unit": "jest spec --coverage"
   },
   "dependencies": {
-    "@standardnotes/common": "^1.23.1",
+    "@standardnotes/common": "workspace:*",
     "jsonwebtoken": "^8.5.1",
     "reflect-metadata": "^0.1.13"
   },
diff --git a/packages/syncing-server/package.json b/packages/syncing-server/package.json
index 66c27fa2b..3d8602be8 100644
--- a/packages/syncing-server/package.json
+++ b/packages/syncing-server/package.json
@@ -27,7 +27,7 @@
     "@newrelic/winston-enricher": "^2.1.0",
     "@sentry/node": "^7.3.0",
     "@standardnotes/analytics": "workspace:*",
-    "@standardnotes/common": "^1.23.1",
+    "@standardnotes/common": "workspace:*",
     "@standardnotes/domain-events": "workspace:*",
     "@standardnotes/domain-events-infra": "workspace:*",
     "@standardnotes/payloads": "^1.5.1",
diff --git a/tsconfig.json b/tsconfig.json
index 3f2452d83..f2fe7c858 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -31,6 +31,9 @@
     {
       "path": "./packages/auth"
     },
+    {
+      "path": "./packages/common"
+    },
     {
       "path": "./packages/domain-events"
     },
diff --git a/yarn.lock b/yarn.lock
index bab691acf..ef7e89498 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2018,7 +2018,7 @@ __metadata:
     "@sentry/node": ^7.3.0
     "@standardnotes/analytics": "workspace:*"
     "@standardnotes/api": ^1.1.19
-    "@standardnotes/common": ^1.23.1
+    "@standardnotes/common": "workspace:*"
     "@standardnotes/domain-events": "workspace:*"
     "@standardnotes/domain-events-infra": "workspace:*"
     "@standardnotes/features": ^1.47.0
@@ -2079,12 +2079,19 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@standardnotes/common@npm:^1.19.1, @standardnotes/common@npm:^1.23.1":
-  version: 1.23.1
-  resolution: "@standardnotes/common@npm:1.23.1"
-  checksum: f498f4c469f7b9cdfc08b7648077832a2a214d844f012d02d73c2c418fab221af3302570cc6b1957b5ed481b55237f95bc24fc5c231162bfcdf8730333d38405
-  languageName: node
-  linkType: hard
+"@standardnotes/common@^1.19.1, @standardnotes/common@^1.23.1, @standardnotes/common@workspace:*, @standardnotes/common@workspace:packages/common":
+  version: 0.0.0-use.local
+  resolution: "@standardnotes/common@workspace:packages/common"
+  dependencies:
+    "@types/jest": ^27.4.1
+    "@types/node": ^18.0.0
+    "@typescript-eslint/eslint-plugin": ^5.30.0
+    eslint-plugin-prettier: ^4.2.1
+    jest: ^27.5.1
+    reflect-metadata: ^0.1.13
+    ts-jest: ^27.1.3
+  languageName: unknown
+  linkType: soft
 
 "@standardnotes/config@npm:2.4.3":
   version: 2.4.3
@@ -2124,7 +2131,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@standardnotes/domain-events@workspace:packages/domain-events"
   dependencies:
-    "@standardnotes/common": ^1.23.1
+    "@standardnotes/common": "workspace:*"
     "@standardnotes/features": ^1.47.0
     "@standardnotes/predicates": "workspace:*"
     "@standardnotes/security": "workspace:*"
@@ -2168,7 +2175,7 @@ __metadata:
   resolution: "@standardnotes/files-server@workspace:packages/files"
   dependencies:
     "@sentry/node": ^7.3.0
-    "@standardnotes/common": ^1.23.1
+    "@standardnotes/common": "workspace:*"
     "@standardnotes/config": 2.4.3
     "@standardnotes/domain-events": "workspace:*"
     "@standardnotes/domain-events-infra": "workspace:*"
@@ -2242,7 +2249,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@standardnotes/predicates@workspace:packages/predicates"
   dependencies:
-    "@standardnotes/common": ^1.23.1
+    "@standardnotes/common": "workspace:*"
     "@types/jest": ^27.4.1
     "@typescript-eslint/eslint-plugin": ^5.30.0
     eslint-plugin-prettier: ^4.2.1
@@ -2269,7 +2276,7 @@ __metadata:
   dependencies:
     "@newrelic/winston-enricher": ^2.1.0
     "@sentry/node": ^7.3.0
-    "@standardnotes/common": ^1.23.1
+    "@standardnotes/common": "workspace:*"
     "@standardnotes/domain-events": "workspace:*"
     "@standardnotes/domain-events-infra": "workspace:*"
     "@standardnotes/predicates": "workspace:*"
@@ -2300,7 +2307,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@standardnotes/security@workspace:packages/security"
   dependencies:
-    "@standardnotes/common": ^1.23.1
+    "@standardnotes/common": "workspace:*"
     "@types/jest": ^27.4.1
     "@types/jsonwebtoken": ^8.5.8
     "@typescript-eslint/eslint-plugin": ^5.30.0
@@ -2381,7 +2388,7 @@ __metadata:
     "@newrelic/winston-enricher": ^2.1.0
     "@sentry/node": ^7.3.0
     "@standardnotes/analytics": "workspace:*"
-    "@standardnotes/common": ^1.23.1
+    "@standardnotes/common": "workspace:*"
     "@standardnotes/domain-events": "workspace:*"
     "@standardnotes/domain-events-infra": "workspace:*"
     "@standardnotes/payloads": ^1.5.1